John E. Hamer

7.9k total citations · 3 hit papers
55 papers, 6.2k citations indexed

About

John E. Hamer is a scholar working on Molecular Biology, Plant Science and Cell Biology. According to data from OpenAlex, John E. Hamer has authored 55 papers receiving a total of 6.2k indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Molecular Biology, 27 papers in Plant Science and 25 papers in Cell Biology. Recurrent topics in John E. Hamer's work include Fungal and yeast genetics research (34 papers), Plant Pathogens and Fungal Diseases (18 papers) and Plant-Microbe Interactions and Immunity (16 papers). John E. Hamer is often cited by papers focused on Fungal and yeast genetics research (34 papers), Plant Pathogens and Fungal Diseases (18 papers) and Plant-Microbe Interactions and Immunity (16 papers). John E. Hamer collaborates with scholars based in United States, Canada and United Kingdom. John E. Hamer's co-authors include Jin‐Rong Xu, Nicholas J. Talbot, William E. Timberlake, Daniel J. Ebbole, Melanie Yelton, Steven D. Harris, Barbara Valent, Forrest G. Chumley, Christopher J. Staiger and Jennifer L. Morrell‐Falvey and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Genes & Development.

In The Last Decade

John E. Hamer

54 papers receiving 6.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Identification and characterization of MPG1, a gene involved in pathogenicity from the rice blast fungus Magnaporthe grisea.

1993 733 citations Nicholas J. Talbot, John E. Hamer et al. The Plant Cell profile →
Transformation of Aspergillus nidulans by using a trpC plasmid.

1984 675 citations Melanie Yelton, John E. Hamer et al. profile →
MAP kinase and cAMP signaling regulate infection structure formation and pathogenic growth in the rice blast fungus Magnaporthe grisea.

1996 631 citations John E. Hamer et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
John E. Hamer United States	35	4.4k	4.3k	2.3k	1.4k	324	55	6.2k
O. C. Yoder United States	39	3.0k 0.7×	4.3k 1.0×	2.7k 1.2×	1.1k 0.8×	704 2.2×	94	5.8k
B. Gillian Turgeon United States	46	3.6k 0.8×	5.5k 1.3×	3.1k 1.3×	1.6k 1.2×	780 2.4×	112	7.6k
Eduardo A. Espeso Spain	40	3.5k 0.8×	2.5k 0.6×	1.4k 0.6×	1.4k 1.0×	232 0.7×	105	4.9k
Daniel J. Ebbole United States	34	2.9k 0.7×	2.6k 0.6×	1.2k 0.5×	848 0.6×	205 0.6×	65	4.3k
Seogchan Kang United States	49	3.6k 0.8×	7.3k 1.7×	4.9k 2.1×	851 0.6×	466 1.4×	135	8.9k
Marc‐Henri Lebrun France	41	2.4k 0.5×	3.8k 0.9×	2.1k 0.9×	657 0.5×	342 1.1×	89	5.0k
Michael Freitag United States	46	3.9k 0.9×	3.2k 0.7×	1.4k 0.6×	798 0.6×	196 0.6×	92	5.7k
Jin‐Rong Xu United States	66	7.6k 1.7×	9.8k 2.3×	4.9k 2.1×	2.3k 1.6×	644 2.0×	185	12.3k
James A. Sweigard United States	24	2.3k 0.5×	2.7k 0.6×	1.4k 0.6×	549 0.4×	225 0.7×	38	3.6k
Forrest G. Chumley United States	27	2.7k 0.6×	3.4k 0.8×	1.8k 0.8×	396 0.3×	185 0.6×	32	4.5k

Countries citing papers authored by John E. Hamer

Since Specialization

Citations

This map shows the geographic impact of John E. Hamer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John E. Hamer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John E. Hamer more than expected).

Fields of papers citing papers by John E. Hamer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John E. Hamer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John E. Hamer. The network helps show where John E. Hamer may publish in the future.

Co-authorship network of co-authors of John E. Hamer

This figure shows the co-authorship network connecting the top 25 collaborators of John E. Hamer. A scholar is included among the top collaborators of John E. Hamer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John E. Hamer. John E. Hamer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

DeZwaan, Todd M., et al.. (2001). Recent advances in large-scale transposon mutagenesis. Current Opinion in Chemical Biology. 5(1). 67–73. 61 indexed citations

Hamer, John E., et al.. (2001). Characterization of a PR-10 Pathogenesis-Related Gene Family Induced in Rice During Infection with Magnaporthe grisea. Molecular Plant-Microbe Interactions. 14(7). 877–886. 148 indexed citations

Hamer, John E.. (2001). Genomics in crop protection discovery.. 431–438.

Takano, Yoshitaka, Taisei Kikuchi, Yasuyuki Kubo, et al.. (2000). The Colletotrichum lagenarium MAP Kinase Gene CMK1 Regulates Diverse Aspects of Fungal Pathogenesis. Molecular Plant-Microbe Interactions. 13(4). 374–383. 216 indexed citations

Hamer, John E. & Nicholas J. Talbot. (1998). Infection-related development in the rice blast fungus Magnaporthe grisea. Current Opinion in Microbiology. 1(6). 693–697. 71 indexed citations

Adachi, Kiichi & John E. Hamer. (1998). Divergent cAMP Signaling Pathways Regulate Growth and Pathogenesis in the Rice Blast Fungus Magnaporthe grisea. The Plant Cell. 10(8). 1361–1361. 13 indexed citations

Hamer, John E. & David W. Holden. (1997). Linking Approaches in the Study of Fungal Pathogenesis: A Commentary. Fungal Genetics and Biology. 21(1). 11–16. 24 indexed citations

Momany, Michelle & John E. Hamer. (1997). TheAspergillus nidulansSeptin Encoding Gene,aspB,Is Essential for Growth. Fungal Genetics and Biology. 21(1). 92–100. 24 indexed citations

Momany, Michelle & John E. Hamer. (1997). Relationship of actin, microtubules, and crosswall synthesis during septation inAspergillus nidulans. Cell Motility and the Cytoskeleton. 38(4). 373–384. 60 indexed citations

10.

Hamer, John E., et al.. (1996). Rearrangements at a DNA-fingerprint locus in the rice blast fungus. Current Genetics. 30(3). 263–271. 12 indexed citations

11.

Hamer, John E., et al.. (1996). Genetic Differentiation in the Rice Blast Fungus Revealed by the Distribution of theFosburyRetrotransposon. Fungal Genetics and Biology. 20(1). 59–69. 30 indexed citations

12.

Harris, Steven D., et al.. (1996). Cytokinesis in Aspergillus nidulans is controlled by cell size, nuclear positioning and mitosis. Journal of Cell Science. 109(8). 2179–2188. 91 indexed citations

13.

Harris, Steven D. & John E. Hamer. (1995). sepB: an Aspergillus nidulans gene involved in chromosome segregation and the initiation of cytokinesis.. The EMBO Journal. 14(21). 5244–5257. 36 indexed citations

14.

Harris, Steven D., Jennifer L. Morrell‐Falvey, & John E. Hamer. (1994). Identification and characterization of Aspergillus nidulans mutants defective in cytokinesis.. Genetics. 136(2). 517–532. 300 indexed citations

15.

Dobinson, Katherine F. & John E. Hamer. (1993). The ebb and flow of a fungal genome. Trends in Microbiology. 1(9). 348–352. 18 indexed citations

16.

Hamer, John E. & Scott A. Givan. (1990). Genetic mapping with dispersed repeated sequences in the rice blast fungus: Mapping the SMO locus. Molecular and General Genetics MGG. 223(3). 487–495. 37 indexed citations

17.

Hamer, John E., Barbara Valent, & Forrest G. Chumley. (1989). Mutations at the smo genetic locus affect the shape of diverse cell types in the rice blast fungus.. Genetics. 122(2). 351–361. 40 indexed citations

18.

Hamer, John E. & William E. Timberlake. (1987). Functional Organization of The Aspergillus Nidulans Trpc Promoter. Molecular and Cellular Biology. 7(7). 2352–2359. 34 indexed citations

19.

Hamer, John E. & William E. Timberlake. (1987). Functional organization of the Aspergillus nidulans trpC promoter.. Molecular and Cellular Biology. 7(7). 2352–2359. 84 indexed citations

20.

Mullaney, Edward J., et al.. (1985). Primary structure of the trpC gene from Aspergillus nidulans. Molecular and General Genetics MGG. 199(1). 37–45. 178 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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